Cylinder construction for pumps or motors.



C. M. MANLY. CYLINDER CONSTRUCTION FOR PUMPS OR'MOTOBS.

APPLIGA TION FILED OCT.21, 1912 Patented Oct. 6, 1914.

Arrest: a .y! M

application, the 'variable speed gear, comv UNITED STATES PATENT oFIuoE- CHARLES MATTHEWS un ty; or FR EEroRT, NEW Yon CYLINDER CONSTRUCTION FOR PUMPS on Morons 1412- 633.; Specification? Letters Patent. 3 lfg jge fljed Oct, 6, 191 4, I gnfirfl structions for pumps 'or' 'motors, and particularlyato that type of pump andmotor dis- .;cl.osed in my pending application No.

(339 464- .for'.l1ycl1-aiilic variable speed gear, (lJuly 19, 1911. As-shown 1n the said prises a. radial stationary c \;'linder"pun'ip -and a radial stationarycylinder motor, the

tuft)" being' jconnected, by an intermediate fi manifold compr sing two concentric pas sages constituting the pressure and exhaust jsides of-the fluid circuit of thespeed gear,

,each-passagebeing. connected to the valve .'chambers of all the. pnmpcylinders and all 'the motor cylinders by bolted flanged con- 1 a I u isfactor-yfin use, is open to the. ob ect1 on nectigms. This construction, While quite. satthat the manifold castiug' isa. (liflicult and of bolts to be set, there being five cylinders .expensive one to make, and also that it adds eonsiderahly to the expense of assembling the.-maohine, .hecause.of the large number to each pump and motor, with two c0nnections' for each cylinder and at least four bolts to each counection,-.-a total of not less than eighty bolts.

My present invention has for its object to simplify the construction in this partic'' ular and at the same time provide a stronger and cheaper design which occupies less space and can more readily adapt itself for separalionof the two elements forming the variable speed gear.

In the accompanying drawings wherein I. have illustrated my improvements, Figure l 1s-an end-view partly in section of the 1 cylinder structure of the motor; Fig. 2 isa vertical section on the median line of Fig. .1,-d0wn to the center of the crank chamber;

Fig. 3is-a=sectional detail view .which will he later described.

Referring now to the drawings, in which like reference characters designate like parts throughoutthe several. views,- 1 represents the crank casing'which is preferably a casting, :and which is provided with-five circumferentially disposed openings 2. for re- Replication filedOc'tober 21,1912.- Serial n 7126,9931

'ahore rcferred to,"the* cylinders of .the'pfini "pendieular to. the z rt ioas='of-,t g ng.

ceiving thethreaded'lower ends oi ders at. The casting 1 is"-'machinedfiq. around the '0penings '2 to form tangen seats oy' shoulders for the'bollars5torn1ed 9 on the cylinders"above-:tl e threaded end" The mgr-s is threadedgon the endo cylinder within the cranlt'casing, 'andi'wlieii against. ltS seat, form ng a' substantially rnigul Joint between.the"cylinder h ndI"tl}e .7 "-11 51 crank chamber. h

As explained in mylprevious appli tron.

and motor are preferably made from: attit- 7( forgmgs of steel, to better :withstaridfithe high pressure of tli'e fl uid inthergeafi'faiid g formed intl'iesarne forging 'with each ofiztlje ;c 'lin de1s 4; is its vane chamherziconnejctd to'the cylinders by hn interinediateg'ur hfl 7| ,throuih which ayfluid transmitting.passage .is. forined Y In the motor eIeinent ofltIie speed gear,theportion,of the'crank chainljer to-wlnch the motor.cyl nders -aregconnected is of.- a larger diameter than} the portionllto 8{ which the valve ehairihersure a'ttachedfeiid P as the passage" 9' connects ithe-topipffithe cylinder with the 'niiddle" portionf bfifthe valve chamber, unless thevalve chamberais made excessively long, .thepa-ssage 0' g be curved downwardly; from" the-top oi 'the cylinder.

In constructing the -cylinder and its' ygili'e chamber; from the. solid forg ng-it is -ci 'stomary to havethe u'cbfS straight and p'e'r- 9 forming the cylinder and 'valve chamber, and then to. first'bore the'cylmder andvalve I chamber to thediameter dc iir ed, and to then bore 'the passage 9 throng g the outer. Wall 9 of the. cylinder and thehvcbrSJ Afterthe passage is hored,"tlie metal of' the. web is heated so that the cylinder. may be displaced outwardly to a suflicient distance to accommodate the larger portion ofthe crankcas 1 ing. It istobe understood that the construe- 'tion embodies five cylinders -4 radial-to a common center and each having a iston connected to a common crankpin, not-s own, whereby the pistons are successii elyreeipro. 1 cated when actuated'by ajconstantideliyery of fluid under pressure. "In orderto' 'ermit the. fluid from the pump torea'ch all t e cylinders forfthe successive operation of their pistons, and for the fluid from the motor cylinders to be returned to the p'nmpf'fpro vide means for connecting all the onterports '10'of the valve chambers and all'the inner ports 11 in a'similar manner, to form common intake and delivery ports for-all the motor cylinders, the valve chambers being coun-. terbored, as shown particularly in Fig. 2,- at the points ofconnection, to permit free passage of fluid from one valve cl'iainherto another. For making such connccti'onsI provide each of the valve chambers with integral ears 12 and 13,-onc on each side' for the upper co nnections, and similar cars, 14 and 15 for the connections between the ports.

11. Into each of the ears 12, 13, 1.4 and 15 a hole 16 of suitable size is bored at anangle of 54 degrees to the radial center of the valve chamber and bonnccting with the counterbored ports 10 and 11.- Eaclrof the holes 16 is provided with a tapered. counterbore, as

shown in Fig. 1, to form a seat for the cor-' respondingly tapered end of the pipe or tubing forming the connection between the valve chambers, as will now be described.

I have shown scveralditl'ercnt forms of intermediate connections between. the various valve chambers. At the lower right and left hand sides-of Fig. 1 I haveshown the onnectionsas separate tubing 17, which is preferably drawn steel tubingof a somewhat resilient nature. At the bottom of Fig." l and at the upper right hand corner I have shown-the connections as provided with suitable means for the attachment of the pipes .flanges being preferablyconnected by an integral web to prevent: rotation of the tubes in their sockets, due to vibration or the strain on the connecting pipes. Between the valve chambers at the upper left hand corner I have shown the two pipes as formed from a single forging connected by an intermediate web in which is formed the bore 19 for a safety valve such as shown inany prior application above referred t6 for permitting, interconnection between the two sides of the circuit an excessive pressure in either side.

In forming, this portion of the connections a.

solid forging is bored through to form the pipes or tubes with the tapered ends; then the intermediate web is bored transversely to the tubes and countcrlmred as shown in Fig. 3. Radial passages 20, 21 are then bored from the outside' and inside of the forging, intersecting the outer and inner passages and connecting them with the bore 19 at different points; longitudinally thereof. Bores 20, 21 are then closed by plugst'o prevent escape of fluid. The forging .from

which this piece is made has its outer n'imberstraight to facilitate boring, instead of curved,'as shown in Fig. -1. After the comletioirof the work on the forging,and beorc it is assembled, theo'utcr tube is heated and bent to the shape shown.

In assembling the structuredescribed, the

intermediate pipes and forgingsare put in place as the valve crank chambers and the connected cylinders are assembled before any."

(if-the nuts Gare screwed in place. Thenall the nuts are tightened together so that the 4 tapered sockets for the ends of the pipes and connections are drawn' toward each other,

the two sockets for each pipe maintaining an the same distance from the center during the tightenin process, so that the tapered eiidsof the pipes are forced axially into their sockets without angular-displacement. The

forcing of the tapered pipe; ends into the 35 sockets compresses them uniformly throu h-.1 outtheir, circumference, making a tight joint all around. The taper of the pipes and sockets is very gradual and consequently the joint will be sufficiently compressed to be so tight while still permitting considerable axial movement of the tube 'andjsocket before the tube is sufficiently compressed to be ru tured or to otl'er excessive resistance to t e tightening of the nuts.

fects the tightening-of four joints, with this construction no great accuracy 18 necessary, in the len th of the tubes or the machining ofthe socliets because all the joints may be drawn up su'lliciently for thevalve-chamber to be clamped in place even though some are tight before the others.

Having thus described my invention, what I claim as new, and desire to secure by Lotters Patent is 1. In a pump or motor construction, the

combination of a. plurality of fluid chambers,

fluid transmitting connections between the same, and means for moving said chambers 10 in an angular direction relative to each other to tighten their joints with the fluid transmitting connections.

2. In a pump or motor construction the combination of a supporting part, a plurality of cylinders dcta'chably connected thereto and extending in different angles therefrom, and a fi'uid transmittingpipe or tube connecting said cylinders and having tapered ends seated in tapered sockets in the adjacent faces of said cylinders.

3. In a radial cylinder pump or meta;

construction, the combination of a flux chamber, cylinders carried by said fl\l1d-. chamber and held against radial movement 25 relative thereto, and fluid transmitting connections between said cylinders,-said connections being held in place by the bcforcrnentioned connections for the cylinders.

4. in a radial cylinder pump or motor Hence, although. the 95 radial movement. of each valve chamber efconstruction, the'combination of a central chamber, a plurality of radially extending fluid chambers carried. thereby, means for drawing said radial chambers toward the center of said central chamber, an intermediate fluid transmitting connection between said radial chambers having a thrust connection with the same whereby the radial construction, the combination of a crank chamber, a plurality of radially extending fluid chambers carried thereby, a plurality of intermediate fluid transmitting connections between said radial chambers comprising' a pair of relatively immovable tubes having thrust connections with said chambers, and means for drawing said chambers inward .in a radial direction to tighten the joints between said chambers and'said intermediate connections.

7. In a radial cylinder pump or motor construction, the combination of a crank chamber, a plurality of radially extending fluid chambers carried thereby, a plurality of intermediate fluid transmitting connections between said radial chambers comprising a single forging consistin of a pair of parallel tubes and an interme iate web having provisions for attachment of fluid con-' nections, said tubes having thrustconnections with said chambers, and means for drawing said chambers inward in a radial direction to tighten the joints between said chambers and said intermediate connections.

8. In a radial cylinder pump or motor construction, the combination of a crank chamber, a plurality of radially extending fluid chambers carried thereby, a plurality of intermediate fluid transmltting connections between said radial chambers comprising a single forging consisting of a a r of parallel tubes and an intermediate we forming a valve casin and providing a fluid connection between t e parallel tubes, said tubes having thrust connections with said chambers, and means for drawing saidchambers inward in a radial direction to tighten the joints between said chambers and said intermediate connections.

In testimony whereof, I, said CHARLES M. MANLY have signed my name to this specification in the presence of two subscribing witnesses, this 19th day of October 1912.

CHARLES MATTHEWS MANLY.

Witnesses v I A. I, MILLER, W. B. Moa'ron. 

